kota 0.1.3

A lightweight, highly extensible ai code agent, built in Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226

use super::{create_temp_dir, create_test_file};
use kota::kota_code::tools::edit_file::{EditFileArgs, EditFileTool};
use rig::tool::Tool;
use std::fs;

#[tokio::test]
async fn test_edit_file_simple_replacement() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(temp_dir.path(), "test.txt", "line 1\nline 2\nline 3\n");

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "--- a/test.txt\n+++ a/test.txt\n@@ -1,3 +1,3 @@\n line 1\n-line 2\n+modified line 2\n line 3\n".to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 1);
    assert_eq!(result.lines_removed, 1);
    assert_eq!(result.file_path, file_path);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "line 1\nmodified line 2\nline 3");
}

#[tokio::test]
async fn test_edit_file_add_lines() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(temp_dir.path(), "test.txt", "line 1\nline 2\n");

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch:
            "--- a/test.txt\n+++ b/test.txt\n@@ -1,2 +1,4 @@\n line 1\n line 2\n+line 3\n+line 4\n"
                .to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 2);
    assert_eq!(result.lines_removed, 0);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "line 1\nline 2\nline 3\nline 4");
}

#[tokio::test]
async fn test_edit_file_remove_lines() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(
        temp_dir.path(),
        "test.txt",
        "line 1\nline 2\nline 3\nline 4\n",
    );

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch:
            "--- a/test.txt\n+++ b/test.txt\n@@ -1,4 +1,2 @@\n line 1\n-line 2\n-line 3\n line 4\n"
                .to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 0);
    assert_eq!(result.lines_removed, 2);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "line 1\nline 4");
}

#[tokio::test]
async fn test_edit_file_complex_patch() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(
        temp_dir.path(),
        "code.rs",
        "fn main() {\n    println!(\"Hello\");\n}\n",
    );

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "--- a/code.rs\n+++ b/code.rs\n@@ -1,3 +1,4 @@\n fn main() {\n+    // Added comment\n     println!(\"Hello\");\n+    println!(\"World\");\n }".to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 2);
    assert_eq!(result.lines_removed, 0);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(
        content,
        "fn main() {\n    // Added comment\n    println!(\"Hello\");\n    println!(\"World\");\n}"
    );
}

#[tokio::test]
async fn test_edit_file_nonexistent_file() {
    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: "nonexistent.txt".to_string(),
        patch: "--- a/nonexistent.txt\n+++ b/nonexistent.txt\n@@ -1,1 +1,1 @@\n-old\n+new\n"
            .to_string(),
    };

    let result = tool.call(args).await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_edit_file_directory_instead_of_file() {
    let temp_dir = create_temp_dir();
    let dir_path = temp_dir.path().join("subdir");
    fs::create_dir(&dir_path).unwrap();

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: dir_path.to_string_lossy().to_string(),
        patch: "@@ -1,1 +1,1 @@\n-old\n+new\n".to_string(),
    };

    let result = tool.call(args).await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_edit_file_invalid_patch_format() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(temp_dir.path(), "test.txt", "line 1\nline 2\n");

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "invalid patch format".to_string(),
    };

    let result = tool.call(args).await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_edit_file_empty_file() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(temp_dir.path(), "empty.txt", "");

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "--- a/empty.txt\n+++ b/empty.txt\n@@ -0,0 +1,1 @@\n+new line\n".to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 1);
    assert_eq!(result.lines_removed, 0);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "new line");
}

#[tokio::test]
async fn test_edit_file_single_line_replacement() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(temp_dir.path(), "single.txt", "old content\n");

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "--- a/single.txt\n+++ b/single.txt\n@@ -1,1 +1,1 @@\n-old content\n+new content\n"
            .to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 1);
    assert_eq!(result.lines_removed, 1);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "new content");
}

#[tokio::test]
async fn test_edit_file_multiline_context() {
    let temp_dir = create_temp_dir();
    let file_path = create_test_file(
        temp_dir.path(),
        "context.txt",
        "line 1\nline 2\nline 3\nline 4\nline 5\n",
    );

    let tool = EditFileTool;
    let args = EditFileArgs {
        file_path: file_path.clone(),
        patch: "--- a/context.txt\n+++ b/context.txt\n@@ -2,3 +2,3 @@\n line 2\n-line 3\n+modified line 3\n line 4\n".to_string(),
    };

    let result = tool.call(args).await.unwrap();

    assert!(result.success);
    assert_eq!(result.lines_added, 1);
    assert_eq!(result.lines_removed, 1);

    let content = fs::read_to_string(&file_path).unwrap();
    assert_eq!(content, "line 1\nline 2\nmodified line 3\nline 4\nline 5\n");
}

#[tokio::test]
async fn test_edit_file_tool_definition() {
    let tool = EditFileTool;
    let definition = tool.definition("test prompt".to_string()).await;

    assert_eq!(definition.name, "edit_file");
    assert!(definition.description.contains("unified diff patch"));
    assert!(definition.parameters.get("properties").is_some());
}